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Implementing Fast and Efficient Core Data Import on iOS 5
...ld of MASTER. So, it should not have to merge the changes. Instead, just watch for the DidSave on the master, and just refetch! The data is sitting in your parent already, just waiting for you to ask for it. That's one of the benefits of having the data in the parent in the first place.
Another...
How big can a MySQL database get before performance starts to degrade
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Also watch out for complex joins. Transaction complexity can be a big factor in addition to transaction volume.
Refactoring heavy queries sometimes offers a big performance boost.
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Running multiple commands with xargs
...llel you can do:
cat a.txt | parallel 'command1 {}; command2 {}; ...; '
Watch the intro videos to learn more: https://www.youtube.com/playlist?list=PL284C9FF2488BC6D1
For security reasons it is recommended you use your package manager to
install. But if you cannot do that then you can use this 1...
How to Configure SSL for Amazon S3 bucket
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watch out for bucket names containing periods! the SSL won't work on iOS devices but will work just fine in Chrome. See stackoverflow.com/questions/3048236/…
– Simon_Weaver
May 14 '14 ...
How to modify a specified commit?
...r commits ...
$ git reset 2c52489
... and you're back where you started
* Watch out for options like --hard and --force though — they can discard data.
* Also, don't rewrite history on any branches you're collaborating on.
On many systems, git rebase -i will open up Vim by default. Vim doesn't...
difference between foldLeft and reduceLeft in Scala
...ist is returned backwards, because we used foldLeft instead of foldRight.
Watch One Fold to rule them all for a more in depth explanation.
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Can I use my existing git repo with openshift?
...nd deploy on OpenShift
git add .
git commit -m "my commit"
git push
And watch the result:
[master 3fc96b2] my commit
1 file changed, 2 deletions(-)
MyLaptop:myapp User$ git push
Counting objects: 3, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (3/3), done.
Writing ob...
Event listener for when element becomes visible?
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@figha, not the children, but if the element you're watching is in a frame that is displayed=none, you won't have any sign of it.
– Sebas
Jan 13 '16 at 23:16
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When to use pip requirements file versus install_requires in setup.py?
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Watch out, requirements files could contain comments and inclusions. You should use the pip parser
– Romain Hardouin
Jun 10 '13 at 12:16
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Diagnosing Memory Leaks - Allowed memory size of # bytes exhausted
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But watch out... the generated trace files will be ENORMOUS. The first time I ran an xdebug trace on a Zend Framework app it took a loooong time to run and generated a multi GB (not kb or MB... GB) sized file. Just be aware of th...